The early morning trading volumes (millions of shares) at Nairobi Securities Exchange for 19 days in January are as shown below

2163, 1436, 2194, 1695, 1980, 2021, 2101, 1720, 1874, 2121, 2001, 1578, 1539, 2232, 1672, 2231, 2214, 1993, 2045 Let the trading volume be represented by random variable . The probability distribution of trading volume is approximately normal. How many shares would have to be traded for the early morning trading volume for the company to be in the top 68%?